Prognostic Meteorological Discussion
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FXUS01 KWBC 280728
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
228 AM EST SUN DEC 28 2014

VALID 12Z SUN DEC 28 2014 - 12Z TUE DEC 30 2014

...WET AND SOGGY CONDITIONS WILL BE SLOW TO CLEAR THE SOUTHEAST
AND SOUTHERN MID-ATLANTIC STATES...

...BITTER COLD EXPECTED BEHIND AN ARCTIC BOUNDARY PLUNGING THROUGH
THE NORTH CENTRAL U.S....

WIDESPREAD SHOWER ACTIVITY WILL CONTINUE TO DEVELOP ALONG A COLD
FRONT EDGING TOWARDS THE EASTERN SEABOARD ON SUNDAY.  AN ABUNDANCE
OF GULF MOISTURE FEEDING INTO THE PRECIPITATION WILL FUEL HEAVY
RAINS WITH EMBEDDED THUNDERSTORMS FROM THE CENTRAL GULF COAST TO
THE SOUTHERN APPALACHIANS.  HEAVIER AND MORE ORGANIZED RAINS WILL
ALSO BE POSSIBLE NEAR A SURFACE WAVE ALONG THE BOUNDARY AS IT
LIFTS FROM THE TENNESSEE VALLEY TO THE MID-ATLANTIC COAST.  THE
NORTHERN PORTION OF THE FRONT WILL PUSH WELL OUT INTO THE ATLANTIC
BY MONDAY MORNING...BUT THE SOUTHERN PORTION IS EXPECTED TO STALL
OUT AND CAUSE ANOTHER WET AND SOGGY DAY ACROSS THE SOUTHEAST AND
SOUTHERN MID-ATLANTIC STATES.

STRONG HIGH PRESSURE NOSING DOWN FROM CANADA WILL PLUNGE AN ARCTIC
BOUNDARY SOUTHWARD THROUGH THE NORTH CENTRAL U.S. ON SUNDAY.
GUSTY WINDS AND PLUMMETING TEMPERATURES BEHIND THE FRONT WILL MAKE
FOR BLUSTERY CONDITIONS FROM THE NORTHWEST TO THE CENTRAL PLAINS.
ALSO ADDING TO THE BITTER CONDITIONS...ENERGY ALOFT AND OROGRAPHIC
EFFECTS WILL TRIGGER WIDESPREAD SNOWS ACROSS THE NORTHWESTERN
QUARTER OF THE NATION.  THE ARCTIC PLUNGE IS EXPECTED TO SPILL
OVER THE ROCKIES...LEAVING BEHIND BELOW NORMAL TEMPERATURES ACROSS
MUCH OF THE WESTERN HALF OF THE COUNTRY BY THE MIDDLE OF THE WEEK.

GERHARDT


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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